On the removal of cutoffs in the$S$-matrix
Abstract
Bogolyubov's $R$ -operation is studied for $H_{\operatorname{int}}=\lambda:\varphi^4(x):$ , where $\varphi(x)$ is a generalized free field with space-like regularization. It is shown that the coefficient functions of the perturbation series for the $S$ -matrix tend to their renormalized values when the cutoffs are removed.
Submission history
[v1] 1974